AWD-127

AWD-127: Heavy-Duty VHF Aviation Band Discone Antenna for ATC

The AWD-127 is a professional-grade, wideband discone antenna specifically engineered for Air Traffic Control (ATC) sites. Designed to provide high-efficiency, omni-directional coverage across the 117–137 MHz frequency range, this antenna is a robust solution for ground-to-air and ground-to-ground communications. Its heavy-duty construction allows it to replace multiple narrowband antennas while surviving the world's most extreme environmental conditions.

Design Engineering

The AWD-127 features a wideband discone design that offers a stable radiation pattern and low VSWR across the entire VHF aviation spectrum. Its vertical polarization and wide 78-degree vertical beam-width ensure consistent signal clarity for aircraft at varying altitudes and distances. The antenna's geometry is optimized for "high-power" applications, ensuring it can handle the intense transmission requirements of busy airport hubs without signal degradation or mechanical fatigue.

Fabrication and Durability

Fabricated from 6063T6 ultra-corrosion-resistant architectural aluminum alloy, the AWD-127 is built for long-term outdoor exposure. The structural integrity is reinforced by Type 316 marine-grade stainless steel hardware, including all screws, nuts, and bolts. For maximum protection against environmental hazards like salt spray, acid rain, and desert sandstorms, all metallic surfaces are finished with a military-grade olive green powder coating. The internal feed cable and N-Female termination are housed within the mounting pipe, providing an added layer of weatherproofing.

Performance Specifications

With a typical gain of 2.14 dBi and a power handling capacity of 500 Watts, the AWD-127 delivers reliable performance for high-traffic ATC bases. It maintains a VSWR of better than 2:1 throughout the 117-137 MHz band, ensuring efficient power transfer and minimal reflected power. The antenna is designed for rapid field deployment; its modular 12-disk and 8-cone element system can be assembled in under five minutes without specialized tools, making it an ideal choice for both permanent and tactical installations.

Key Technical Features

• Optimized Frequency Range: Full 117–137 MHz coverage for all VHF aviation channels.
• High Power Tolerance: Supports continuous RF power up to 500 Watts.
• Superior Materials: Constructed from 6063T6 Aluminum and 316 Stainless Steel.
• Robust Wind Rating: Aerodynamically stable up to wind speeds of 200 Km/Hr.
• Omni-Directional Pattern: 360-degree horizontal coverage with 78-degree vertical beam-width.
• Modular Assembly: Quick-install elements (12 disk/8 cone) for easy shipping and 5-minute setup.
• Protected Feed: N-Female connector is shielded within the mounting mast.

Regulatory Compliance & Standards

The AWD-127 is engineered to meet the highest global standards for safety and reliability:

• MIL-STD-810G Compliance: Fully tested for High/Low Temperature, Humidity, Shock, Vibration, Rain, Fungus, and Salt Fog.
• CE Certified: Complies with European health, safety, and environmental protection legislation.
• RoHS & WEEE: Adheres to EU directives for hazardous substance restrictions and sustainable electronic waste recycling.

Key Advantages

• Consolidated Site Management: Replaces several single-frequency antennas with one wideband unit.
• All-Weather Reliability: Designed for extreme coastal, desert, and high-altitude environments.
• No Field Tuning: True "plug-and-play" operation across the entire specified bandwidth.
• Military-Grade Finish: Epoxy powder coating protects against UV radiation and corrosive gases.

Key Antenna Applications

• Airport ATC Towers: Primary ground-to-air communication link.
• Civil Aviation Authorities: Reliable infrastructure for national airspace management.
• Tactical Military Airfields: Rapid-deploy antenna for field operations.
• Coastal Ground Stations: Salt-resistant communication for naval aviation.